[ISDP] 20170518 2nd midterm 2

Question

Please design a regular expression matches a date in yyyy-mm-dd format from 1900-01-01 through 2099-12-31. You can assume that every mouth has 31 days, and you don't have to consider leap year.

Answer 1

Hidden content!
* **** **** ** **** * ********* ** * * * * ** ** **** * **** * * *

Answer 2

Hidden content!
** ** *** * || 2]\d{1}[0 || ** ** ** ***** || ***** ** * * * ** ** * * ** * * ** * $results)

Answer 3

Hidden content!
$input =~ ** * *** * * ** * ** ** * * *** ** *

Answer 4

Hidden content!
* ** * *** *** * * ** * * ** * * * ** * * *

Answer 5

Hidden content!
* * * * * ** ** ***

Answer 6

Hidden content!
** * * * ****** ** * ** * **** * * **

Answer 7

Hidden content!
** * * * *




** ****


* * ****** *** *** *
**** * ******

if ** ******* * * * * * * * ** * * * * ** ** *******
{
* ** * ***
* * *
** * **
}


*****

Answer 8

Hidden content!
* * * **** * * * ** ** *

Answer 9

Hidden content!
** ** ** ** ** * * * * *** * *** **** * *** *** * *

Answer 10

Hidden content!
**** * * ***** *** *** *** ** * *** * *** * * * ** *** * ****